Electronic cockroach killer



FIG. 1 is a first perspective view of an electronic cockroach killer showing my new design;

FIG. 2 is a second perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

The broken lines shown in the drawings depict portions of the electronic cockroach killer in which the design is embodied that form no part of the claimed design. 

CLAIM The ornamental design for an electronic cockroach killer, as shown and described. 